package com.bdqn.crm.config.shiro;

import at.pollux.thymeleaf.shiro.dialect.ShiroDialect;
import com.bdqn.crm.service.SysRoleService;
import org.apache.shiro.mgt.SecurityManager;
import org.apache.shiro.spring.security.interceptor.AuthorizationAttributeSourceAdvisor;
import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
import org.apache.shiro.web.session.mgt.DefaultWebSessionManager;
import org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import javax.annotation.Resource;
import java.util.LinkedHashMap;
import java.util.Map;

@Configuration
public class ShiroConfig {

    /**
     * 开启Shiro注解(如@RequiresRoles,@RequiresPermissions),需借助SpringAOP扫描使用Shiro注解的类,并在必要时进行安全逻辑验证
     * 配置以下两个bean(DefaultAdvisorAutoProxyCreator和AuthorizationAttributeSourceAdvisor)
     * @return
     */
    @Bean
    public DefaultAdvisorAutoProxyCreator advisorAutoProxyCreator(){
        DefaultAdvisorAutoProxyCreator advisorAutoProxyCreator = new DefaultAdvisorAutoProxyCreator();
        advisorAutoProxyCreator.setProxyTargetClass(true);
        return advisorAutoProxyCreator;
    }

    @Bean
    public AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor(SecurityManager securityManager){
        AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor = new AuthorizationAttributeSourceAdvisor();
        authorizationAttributeSourceAdvisor.setSecurityManager(securityManager);
        return authorizationAttributeSourceAdvisor;
    }

    @Bean
    public MyShiroRealm myShiroRealm() {     //自定义Realm
        MyShiroRealm shiroRealm = new MyShiroRealm();
        return shiroRealm;
    }

    @Bean
    public SecurityManager securityManager() {   //安全管理器 SecurityManager
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        //注入Realm
        securityManager.setRealm(myShiroRealm());
        return securityManager;
    }

    @Bean
    public ShiroFilterFactoryBean shiroFilterFactoryBean(SecurityManager securityManager) {
        //Shiro过滤器：权限验证
        ShiroFilterFactoryBean shiroFilterFactory = new ShiroFilterFactoryBean();
        //注入SecurityManager
        shiroFilterFactory.setSecurityManager(securityManager);
        //权限验证：使用Filter控制资源(URL)的访问
        shiroFilterFactory.setLoginUrl("/index");
        shiroFilterFactory.setLoginUrl("/main");
        shiroFilterFactory.setLoginUrl("/403"); //没有权限跳转403页面
        Map<String,String> filterChainDefinitionMap = new LinkedHashMap<String,String>();//必须使用LinkedHashMap(有序集合)
        //配置可以匿名访问的资源(URL)：静态资源
        filterChainDefinitionMap.put("/css/**","anon");
        filterChainDefinitionMap.put("/fonts/**","anon");
        filterChainDefinitionMap.put("/images/**","anon");
        filterChainDefinitionMap.put("/js/**","anon");
        filterChainDefinitionMap.put("/localcss/**","anon");
        filterChainDefinitionMap.put("/localjs/**","anon");
        filterChainDefinitionMap.put("/login","anon");
        filterChainDefinitionMap.put("/logout","logout");//注销过滤器，自动注销
        //配置需要特定权限才能访问的资源(URL)
        //静态授权：包括全部需要特定权限才能访问的资源(URL)
        filterChainDefinitionMap.put("/user/list","perms[用户列表]");
        filterChainDefinitionMap.put("/user/add","perms[用户添加]");
        filterChainDefinitionMap.put("/user/edit","perms[用户编辑]");
        filterChainDefinitionMap.put("/user/del","perms[用户删除]");
        //配置认证访问：其他资源(URL)必须认证通过才能访问
//        filterChainDefinitionMap.put("/**","authc"); //必须放在过滤器链的最后面
        shiroFilterFactory.setFilterChainDefinitionMap(filterChainDefinitionMap);
        return shiroFilterFactory;
    }

    @Bean(name = "shiroDialect")
    public ShiroDialect shiroDialect(){     //thymeleaf页面上使用shiro标签
        return new ShiroDialect();
    }
}
